Revolution Gear and Axle Ring and Pinion Master Install Kits offer a comprehensive bill of material with all the components needed to overhaul your differential ring and pinion gear set. Our Master Install Kits contain the highest quality components from name brands like Timken bearings. Master Install Kits include differential pinion bearings and carrier bearings and are designed to meet the rigorous standards of both daily drivers and performance enthusiasts alike. Whether you're tackling tough terrain off-road or optimizing your vehicle for the track, Master Install Kits from Revolution Gear and Axle deliver unmatched durability and performance. Upgrading or replacing differential ring and pinions is a labor intensive process. Once you have selected the right gear set, choose a Master Install Kit from Revolution Gear and Axle for a smooth, trouble-free installation and years of reliable operation. Ring and Pinion Bearing Kit Specifications Compatibility: Fits 2018+ Dana 30 Front Axle Jeep Wrangler JL Non-Rubicon (186MM) Differential: Dana 186MM Bearing Brand: Timken Pinion Bearings Included: Yes Carrier Bearings Included: Yes Axle Seals Included: No Ring Gear Bolts Included: Yes Pinion Shims Included: Yes Carrier Shims Included: Yes Pinion Seal Included: Yes Crush Sleeve Included: Yes Cover Gasket or Gasket Maker Silicone Included: Yes